The internet offers a rich collection of high quality numerical data on thousands of subjects. But the potential of this data is not being reached at all because the data is very difficult to actually find. Furthermore, it is difficult to extract, validate, format, merge, and share.
We have a solution: We’re building an intelligent search engine for numerical data. We’ve developed technology that lets people quickly and easily add data to Quandl’s index. Once this happens, the data instantly becomes easy to find and easy to use because it gains 8 essential attributes:
Quandl is essentially a search engine for numerical data. Every search result on Quandl is an actual data set that you can use right now. Once data from anywhere on the internet becomes known to Quandl, it becomes findable by search and by browse.
Quandl is a universal translator for data formats. It accepts numerical data no matter what format it happens to be published in and then delivers it in any format you request it. When you find a dataset on Quandl, you'll be able to export anywhere you want, in any format you want.
Every dataset on Quandl is accessible by a simple API. Whether or not the original publisher offered an API no longer matters because Quandl always does. Quandl is the universal API for numerical data on the internet.
Every dataset on Quandl has a simple link back to the same data on the publisher's web site which gives you 100% certainty on validity.
Once a dataset is on Quandl, it stays there forever. It is always up-to-date and available at a permanent, unchanging URL.
Any data set on Quandl is totally compatible with any and all other data on Quandl. You can merge multiple datasets on Quandl quickly and easily.
Every single dataset on Quandl is guaranteed to be the most recent version of that data, retrieved afresh directly from the original publisher.
Data on Quandl is organized and presented for maximum utility: Actual data is examinable immediately; the data is graphed (properly); description, attribution, units, and export tools are clear and concise.
Quandl has no spiders crawling the web for numerical data. Instead, curators direct the “Quandl-Bot” to datasets that they would like added to the Quandl index. The Q-Bot then generates the metadata Quandl needs to index the given dataset. Curators ensure that datasets have human-readable names and descriptions.
The 4 million datasets on Quandl now were curated by four of us over the past few months. Our goal is to put the Q-Bot in the hands of all our users and massively increase Quandl’s coverage.
If you are interested in being one of our first curators, please contact us.
Quandl and Open Data
Quandl is an open platform. We believe in making data easily accessible to users. As such, we support a number of open data initiatives, financially, technologically and otherwise; we also help the open data community via our efforts to structure and index data on the internet.
Any and all public data on Quandl will always be open and free to everyone.